The machine-made Cabernet glass of the technologically advanced glass collection Performance is the new ultimate loudspeaker for fine wine. This glass showcases the majestically structured red wines in all their complexity and finesse. Performance is the first RIEDEL wine glass series ever to feature bowls with a light optic impact, which not only adds a pleasing visual aspect to the bowl, but also increases the inner surface area. All RIEDEL glasses are dishwasher safe.